baber/WOPTO huggingface dataset:
Patent GB-430535-A (GB)
Title: Improvements in or relating to electric arc converters
IPC: H01T11/00
Filed: 1934-04-24
Abstract: 430,535. Arc converters. PRICE, A. C., c/o General Electric Co., Wembley, Middlesex. - (Marx, E. ; 3, Rankestrasse, Wohnung, Brunswick, Germany) April 24, 1934, No. 12358. [Class 40 (v)] In an arc converter of the kind in which the arc is initiated by auxiliary means between electrodes past which a gaseous fluid is adapted to flow, the rate of fluid flow over the arcing surface of the cathode is less than the rate of fluid flow over the arcing surface of the anode. An anode 2 and a cathode 3 are mounted within screen electrodes 4, 5 which are supported from the container by insulating rings 15, 16. A screen 6 is arranged between the cathode and the electrode 5. Gaseous fluid, which is supplied from a blower through inlets 7, 9, flows in the directions shown and leaves through the outlets 11, 13 ; valves 8, 10, 12, 14 control the rate of flow. An auxiliary arc is struck, in each cycle, between the cathode 3 and the electrode 5 by means described in Specification 429,060 and is blown on to the main electrodes. The arc roots may be rotated by means of a magnetic field.
Patent GB-811779-A (GB)
Title: A new or improved ignition device
IPC: F23Q3/00
Filed: 1955-04-29
Abstract: 811,779. Igniting torches. CHILDS, A. W. April 30, 1956 April 29, 1955], No. 12369/55. Class 75(3) An ignition device particularly for igniting oxy-acetylene torches for use in welding metals, comprises exposed spark gap elements 15, which may be adjustable, connected in the secondary circuit of a step-up transformer e,g. of ratio 1000 : 1, the primary circuit of which is intermittently excited by the operation of a switching device including means for rendering it active for a predetermined time upon initial activation. Such switching device, as shown, is conveniently a flexible inverted pendulum in the form of a helical spring 16 with touching turns and with an adjustable weight 21 at its end to vary the oscillation period, the pendulum forming the movable contact of the switching device, the other contact being formed by the sides of the apertures 17 in as housing 10 supporting the pendulum and containing the transformer and source of power e.g. a battery or a connecting device for coupling to a source of power and carrying the spark gap elements 15 on rods 14 so disposed with respect to the pendulum 16 that when this latter is deflected sideways as by the part of the torch to be ignited, to initiate. the sparks by the oscillation and intermittent making and breaking of the contacts 16, 17, the inflamable gas projected into the spark gap from the torch, is ignited and the flame projected away from the body of the housing 10 to avoid damage thereto by the flame. The ignition device may be incorporated in a portable casing 10 and support a permanent magnet to facilitate its retention on a bench or support of magnetic material or the device may be built in or permanently installed on or in association with a work bench or welding plant.
Patent GB-197682-A (GB)
Title: Improvements in connection with filters for use in apparatus for regulating physical conditions such as speed or pressure
IPC: G05D13/00
Filed: 1923-05-09
Abstract: 197,682. Aktiebolaget Arca Regulatorer. May 13, 1922, [Convention date]. Valves controlled by pilot or relay valves.-A filter for cleaning the operating pressure liquid of a speed or pressure regulator having a reciprocating member is cleansed by a reverse flow of filtered liquid when the member moves in one direction. Fig. 1 illustrates a device for regulating the pressure of liquid flowing through a pipe 10. The valve 11 is under the control of a spring 27 and a diaphragm 26 in a chamber 25 to which a pressure liquid passes from an inlet 20 through a filter cloth 28. The inlet 20 and an outlet 21 for the pressure liquid are controlled by a slide 12 connected to the spindle of the valve 11 by a rod 13 and lever 14. The lever is connected by a rod 16 to a movable part 19 to which are attached diaphragms 17. 18. Part of the pressure liquid passes from above the filter, through an axial passage in the part 19 to below the diaphragm 18 and thence through a pipe 32 to a nozzle 33. The discharge through this nozzle is controlled by a bellows device 36 to which the pressure in the pipe 10 is communicated through a pipe 35. When the pressure in the pipe 10 rises above normal, the discharge through the nozzle is increased, and the pressure below the diaphragm 18 is lowered so that the part 10 moves down, the valves 11, 12 are operated and there is a backward flow of liquid from the chamber 25 through the filter, so that the impurities are removed therefrom. Fig. 2 shows another form of pressure-control device fitted with a filter 53. The casing 40 has an inlet 49 for a pressure liquid and an outlet 50 to waste. Chambers 44, 51 are connected respectively to the device for operating the valve to be controlled and to the impulse-giving member. Only liquid flowing to the chamber 51 through an axial passage in a slide 41 is filtered. If the pressure in the chamber 51 rises, a diaphragm 42 and the slide 41 moves slightly towards the right taking the filter in the same direction. There is then a reverse flow through the filter and the impurities are carried away from the filter into the chamber 44.
Patent GB-554118-A (GB)
Title: Improvements in wire transmission systems for electric signals
IPC: H04B3/14
Filed: 1942-09-04
Abstract: 554,118. Transmission systems. STANDARD TELEPHONES & CABLES, Ltd. Sept. 4, 1942, No. 12513. Convention date, Sept. 9, 1941. Drawings to Specification. [Class 40 (iv)] [Also in Group XL] Variation in the attenuation and impedance of a transmission line with temperature are compensated with the aid of two pairs of networks comprising thermistors and resistances with or without reactances arranged in both legs nearer to the ends than to the middle of a line, e.g. a repeater section, and preferably a third such pair connected in the middle of the line. In the case of a loaded line, such networks are provided at uniform intervals equal to the length of a loading section or a multiple thereof. In a repeater system, the compensating networks are taken account of in designing the balancing networks. Specification 540,844, [Group  XXXVI], is referred to.
Patent GB-1300552-A (GB)
Title: Improvements in or relating to motor vehicles
Inventor: DUDLEY JOHN TREVOR
IPC: B62D33/067
Filed: 1969-03-11
Abstract: 1300552 Tilting cabs G K N SANKEY Ltd 6 March 1970 [11 March 1969] 12775/69 Heading B7B [Also in Division E2] In a vehicle having a tilting cab, means are provided to prevent the or each cab door, when in an open position, from further opening movement, the means being rendered inoperative when the cab is in the normal position. The means comprise a toothed quadrant 25, fixed to a door hinge strap 21 and movable about an axis 20, and a pawl 27 urged into engagement with the quadrant by a spring 36 acting through an arm 32 and a rod 29. In the normal position of the cab the pawl is held out of engagement by a bolt 40. The quadrant teeth are inclined to prevent further opening, but to allow closing of the door. In further arrangements, the teeth are formed in the bottom edge either of the arcuate portion 24 of the hinge strap 21 or of a check strap, Figs. 3, 4 (not shown), the pawl 27 being biased vertically upwards.
Patent GB-572572-A (GB)
Title: Improvements in or relating to adhesive material
IPC: C09J193/00
Filed: 1940-08-09
Abstract: An adhesive material for coating bombs, missiles, &c. consists of castor oil, copal resin and carnauba wax or Brazilian palm wax. An antioxidant such as pyrogallol may be added.  Specification 572,542, [Group XXI], is referred to.
Patent GB-418992-A (GB)
Title: Improvements in or relating to the manufacture of hydrochloric acid and apparatus therefor
IPC: C01B7/03
Filed: 1933-05-03
Abstract: 418,992. Chemical furnaces. CHEMICAL & METALLURGICAL CORPORATION, Ltd., Runcorn, Cheshire, and CASSON, S. B., 12, Peru Street, Manchester. May 3, 1933, No. 12896. [Class 51 (ii).] A hydrochloric acid furnace, having rotating rabbles 22 and an off-centre acid feed pipe 28 as described in Specification 375,039, is fitted with an acid distributer 23 mounted on the rotary hub 21 and consisting of a number of compartments 24 which pass in succession beneath the pipe 28 and are each provided with a delivery spout 27 projecting between the rabbles 22. As shown in Fig. 3, access of acid to the hub 21, should the distributer 23 break, is prevented by a shield 32. The salt is supplied from a hopper 18 through the off-set shoot 20, while, to prevent escape of gas, the tube 29 enclosing the acid feed pipe 28 is formed with a flange 30 engaging the roof of the reaction chamber and with a downwardly extending portion 31 which fits within an upstanding wall 26 on the distributer 23.
Patent GB-442060-A (GB)
Title: Optical magnifying device
IPC: G02B25/00
Filed: 1935-04-30
Abstract: 442,060. Magnifying-lenses. EMERSON, A. H., 24, Wentworth Park, Finchley, and CULVER, E., 42, Coolhurst Road, Crouch End, both in London. April 30, 1935, No. 12919. [Class 97 (i)] A magnifying-lens to be used with its base in contact with the object to be viewed comprises a segment of a sphere or cylinder greater than a hemisphere or half cylinder, the height t of the lens being approximately 1.25 the radius of the sphere or cylinder. The base may be plane, or it may be slightly concave as shown in dotted lines. Specification 434,982 is referred to.
Patent GB-107307-A (GB)
Title: An Improved Rick Lifter or Hay Bogie.
Inventor: HOWIE ROBERT WILLIAM
IPC: A01D87/12
Filed: 1916-09-15
Abstract: 107,307. Howie, R. W. Sept 15, 1916. Hay-bogies.-The winding-drum 1 of a rick-shifter is freely mounted on the axle c of the vehicle and is driven by gearing, and the winding-ropes 3 pass over pulleys 4, preferably adapted to swivel, at the front of the vehicle. The gearing may comprise a pinion 6 on the drum engaging a pinion 7 which is driven by a pinion 10 on the spindle 15 of the driving- crank 14. To reduce the speed, the spindle 15 can be moved endways to cause the pinion 10 to engage a pinion 9 provided with a pinion 8 engaging the pinion 7. The crank may be detachably secured to the spindle 15 by the engagement of a spring catch on the crauk with a lug on the spindle.
Patent GB-1464711-A (GB)
Title: Process for preparing 3-4-methacrylic acid
IPC: C07C51/25
Filed: 1975-03-27
Abstract: 1464711 Methacrylic acid ASAHI GLASS CO Ltd 27 March 1975. [2 April 1974 (2) 2 July 1974] 13098/75 Heading C2C [Also in Division B1] Methacrylic acid is prepared by oxidizing methacrolein in the vapour phase with molecular oxygen at 250-450‹ C. in the presence of a catalyst comprising (a) molybdenum (b) phosphorus (c) thallium and/or cesium (d) at least one of vanadium, zirconium, tin, niobium, nickel, tantalum and iron and (e) oxygen. An empirical formula Mo 12 P α X # Y γ O #  wherein X is thallium in cesium; Y is one of the metals in (d); α is 0À1-3 ; # is 0À1-7; γ is 0À1-7; and # is a number decided on the oxidation state of the other elements, may be that of the catalyst and one or more further element/s may be tungsten, cobalt, indium, manganese, cadmium, barium and selenium. The catalyst may be of cesium phosphomolybdate or thallium phosphomolybdate, and examples of the catalyst starting materials and preparation are given. Acetic acid is present as by-product.
Patent GB-825717-A (GB)
Title: Improvements in the construction of tankers
IPC: B63B3/00
Filed: 1957-04-24
Abstract: 825,717. Longitudinal stiffening in tankers. GOTAVERKEN A.B. April 24. 1957 [April 28, 1956], No. 13099/57. Class 113. A tanker having a stern engine room has longitudinal stiffening members comprised in the cargo areas extending into the engine room, the members extending from the upper deck 3 to the bottom plating 2 on either side of the forward engine room bulkhead. This is effected by either extending longitudinal bulkheads 4 into the engine room, as in the case of a single engined ship, or in the case of a ship with two main engines by replacing longitudinal girders 5 by a vertical longitudinal bulkhead 16, in the two stern most tanks 12, 13, cofferdam 14 and bunker tank 15 and extending the bulkhead into the engine room between the two main engines ; the longitudinal bulkheads 4 also extend into the engine room and they may diverge outwardly from the middle line. A further embodiment describes the longitudinal bulkheads 4 being extended to the stern peak bulkhead while the central longitudinal girders 5 terminate at the cofferdam. Platforms e.g. 7 and 8 are arranged to divide the space between the longitudinal bulkheads and side plating into compartments and corresponding platforms 9 in the engine room. The longitudinal bulkheads may entirely or partly consist of corrugated plate.
Patent GB-340910-A (GB)
Title: Improvements in or relating to polishing machines
IPC: B24B47/04
Filed: 1930-04-29
Abstract: 340,910. Polishing. BERG-HECKMANN-SELVE AKT.-GES.; Altena, Westphalia, Germany. April 29, 1930, No. 13128. Convention date, April 29, 1929. [Class 60.] Flat extended surfaces, surfacing.-A machine for polishing thin metal sheets consists of a polishing- roller 1 carried by an axle 6 parallel to the polishing plane in the forked end of an arm 2, the other end of which engages a crank pin 7, the arm being pivoted at approximately the middle of its length about an axle 4 on a carriage 5 slidable longitudinally of the work on base plate 14, so that the roller 1 moves in an approximately circular path, whereby wear is equalized. The roller is driven by an electric motor 13 mounted on the plate 14, which is adjustable transversely of the work on a cross beam 10 ; the beam 10 is adjustable vertically on uprights 8, 9 and the table carrying the work is reciprocated beneath the roller 1.
Patent GB-401277-A (GB)
Title: Improvements in or relating to alternating current electrical instruments
IPC: G01R11/36
Filed: 1932-05-07
Abstract: 401,277. Power and supply meters. ELLIOTT BROS. (LONDON), Ltd., Century Works, Lewisham, London, and SHOTTER, G. F., 14, The Ridgeway, Friern Barnet, Middlesex. May 7, 1932, No. 13179. [Class 37.] Alternating - current instruments for measuring volt-amperes or volt-ampere-hotus have relatively movable current and pressure windings supplied with pulsating current through rectifiers, the flux produced by one or both windings being smoothed by a conducting plate or shortcircuited winding, the current induced in which by the pulsating flux produces an alternating flux of the same frequency but displaced approximately 180‹ in phase. Fig. 1 shows an instrument for measuring volt-amperes in which a coil 7 is pivoted so as to move in the field between the poles of a magnet 3 and a cylindrical core 6, rotation being opposed by a spring or other control means. The pressure winding 1 of the magnet 3 is wound on a copper spool 2 and is connected across the supply mains through a rectifier 10. The coil 7 is connected in series with the supply through a rectifier 11. For use on three-phase circuits, current and pressure rectifiers are connected in each phase, for example through transformers. The pressure coil may be connected to the three pressure rectifiers in series or in parallel, or it may consist of three separate coils each connected to a rectifier. The moving coil is similarly connected to the three current rectifiers. Fig. 3 shows a motor meter registering volt-amperehours, in which a conducting disc 14 rotates in a mercury bath 15. Three equally spaced electrodes 16, 17, 18 are connected to the current rectifiers 11<1>, 11<2>, 11<3> as shown, a common return conductor 19 being connected to the centre of the disc. Three pressure coils 20<1>, 20<2>, 20<3> wound on copper spools with magnetic coils are connected to pressure rectifiers 10<1>, 10<2>, 10<3>. Alternatively a single pressure coil may be connected to the three pressure rectifiers in series. The rectifiers 11<1>, 11<2>, 11<3> may be connected in parallel and to a single electrode and the centre of the disc or to two diametrically arranged electrodes. A clock type meter is shown in Fig. 4. Two pendulums 21, 22 carry coils 23, 24 connected in series to a rectifier 30 supplied from a current transformer. Pressure coils 25, 26 are wound on conducting spools on a magnetic core 29 and are connected in series to a rectifier 31 which is connected to the supply mains through a pressure transformer. A magnetic plate 32 provides a more nearly constant flux opposite the pendulums. Fig. 5 shows a modification in which the alternating flux is produced by a winding 35 connected to the secondary winding of a transformer 36 the primary winding of which is connected in series with the pressure winding 37 and the direct-current side of the rectifier 38.
Patent GB-543369-A (GB)
Title: Improvements in knickers
IPC: A41B9/04
Filed: 1940-08-20
Abstract: 543,369. Knickers. PERRY, H. Aug. 20, 1940, No. 13227. [Class 141] Directoire knickers are made from two substantially rectangular pieces a ... d of material each of which has an outward extension of substantially triangular shape at the lower part of the line a, b, the fabric extending upwards from the point b to a point h and then merging gradually into the upper part of the line a, b. The top of each piece is sloped from back to front, and the lower part cut away on the line b, f, c, the point c being slightly higher than the point b. Each piece is folded about the centre line e, f, and the part c, i, is sewn to the part b, h, and the lines i, d, and h, a of the one piece are then sewn to the corresponding lines of the other piece. A reinforcement may be introduced at k. The waist and leg ends are provided with elastic or other constricting means 4, 5. Reference has been directed by the Comptroller to U.S.A. Specification 1,845,131.
Patent GB-132430-A (GB)
IPC: A24F15/04
Abstract: 132,430. Bradwell, H. Feb. 1, 1919. Contents, delivering; boxes combined with petrol lighters, cigar-cutters, &c.-A box &c. for automatically delivery cigarettes &c. comprises a pivoted platform 3 counterweighted at 5 so as normally to form a continuation of an inclined shelf 2 within the box. A depression 6 in the platform adjacent a delivery slot 8 in the box receives a cigarette &c., which, when the platform is depressed, rolls through the slot against a curved extension 9 on the platform. A match-container, petrol lighter, or cigar-cutter may be combined with the box.
Patent GB-591456-A (GB)
Title: Improved glass compositions and process of producing same
IPC: C03C3/095
Filed: 1944-07-11
Abstract: 591,456. Goggles. AMERICAN OPTICAL CO. July 11, 1944, No. 13276. Convention date, May 12, 1943. [Class 97 (i)] [Also in Group XXIII] Welders' masks or goggles are made from a glass composition (see Group XXIII) having infra-red, ultra-viotet and visible ray absorption, to which neodymium in the form of crude rare earth oxides or other compounds containing neodymium is added to give sodium line absorption. A preferred composition comprises the following parts by weight : SiO2 54 ; Na2O 10; K2O 5; CaO 2 ; crude rare earth oxides containing neodymium 24; Na2SO4, NaCl, As2O5, Sb2O5 severally or in any combination 0 to 3 ; Fe2O3 0:5 to 15.
Patent GB-1046065-A (GB)
Title: Improvements in or relating to high voltage coating apparatus
IPC: B05B5/04
Filed: 1964-03-31
Abstract: Coating apparatus includes means for supplying two components of coating material separately through two individual nozzles to a rotating atomizing head and means for maintaining an electrostatic field between said rotating head and the article to be coated.  The two nozzles may be co-axial, (Figs. 3 and 4, not shown) the inner one being of circular cross-section and the outer one being of annular cross-section, the cross sectional areas being adjustable by adjustment of the nozzles.  The nozzles are preferably located behind a rotating disc (Fig. 2, not shown), located within a cup-shaped rotating atomising head. Alternatively the two nozzles may be arranged separate and parallel to one another with their outlets co-planer, (Fig. 6, not shown), and the atomizing head may include two co-axial cups, one coating component being supplied to the inner cup from the forward edge of which it is ejected in the direction of the forward edge of the outer cup, to which the other component is supplied. Preferably the open end of one nozzle is located a short distance behind a central disc of the atomizing head and the other nozzle outlet is located a short distance behind a flat annular portion of said head, (Fig. 9, not shown).  The disc is attached to the inner cup by a number of webs, said cup being integral with the annular portion and joined to the outer cup by further webs.  The cups and other parts of the atomizing head may be in the form of removable rings so as to be readily replaceable.  In a further embodiment (Fig. 12, not shown) the rotating cup-shaped member is replaced by a disc-shaped member.
Patent GB-577138-A (GB)
Title: Process of dehydrating mineral oil emulsions
IPC: C10G33/04
Filed: 1943-08-16
Abstract: 577,138. Breaking mineral oil emulsions. BURNAM, T. W. Aug. 16, 1943, No. 13296. [Class 91] Natural petroleum brine emulsions are broken by means of a gelatinous mass of a cellulose ether such as ethyl cellulose, the material becoming gelatinous on contact with the emulsion and then'causing it to separate into dehydrated petroleum and brine. The process may be effected by agitation of the material with the emulsion and then allowing to settle, or preferably by floating a layer of the material on a small quantity of brine at the bottom of a tank and then introducing the emulsion beneath the layer of the material to flow therethrough and separate into dehydrated oil above the gelantinous layer of material and brine below. The cellulose ether is preferably dissolved in a solvent such as a high aromatic content petroleum solvent, a coal tar hydrocarbon, or an alcohol. To reduce the consistency of the gelatinous layer which forms in use, a plasticizing agent may be added such as a plasticizer of the urea formaldehyde, urea melamine formaldehyde. or alkyd resin types. The petroleum is not only dehydrated but solid impurities and tars are removed, the o:l is partially de-waxed, and the sulphur content substantially reduced.
Patent GB-133623-A (GB)
IPC: F41G1/12
Abstract: 133,623. Newitt, E. J. D., and Watson, E. F. April 29, 1919. Sights.-Consists in marking the divisions of the back-sight scale with the maximum heights of the corresponding trajectories, measured from the line of sight, instead of, or in addition to, the usual range marking. Fig. 5 shows a small-arm sight of the hinged-leaf and slide type marked with trajectory heights on the left. and ranges on the right, the two scales c, c<1> being being adjustable vertically to change the zerosetting. In use, the marksman estimates, not the range, but the height of the target, and sets the upper edge of the slide a, a<1> to the corresponding graduation on the height scale c. He. aims at the foot x of the target o, Fig. 7. with the result that the target o will be cut somewhere in its height by the trajectory of the bullet, provided that o lies anywhere within the limiting range sx<4>.